Title:
CONDUCTIVE RESIN COMPOSITION AND MOLDED PRODUCT
Document Type and Number:
Japanese Patent JP3634496
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a conductive resin composition having stabilized high electric conductivity and excellent electromagnetic wave shielding effect by mixing a thermoplastic resin based on an aromatic polycarbonate resin with metal- coated carbon fibers and specified conductive carbon black.
SOLUTION: This composition substantially consists of 45-94wt.%, based on the total of components A to C, thermoplastic resin (A) comprising at least 50wt.% aromatic polycarbonate, 5-40wt.% metal-coated carbon fibers (B) and 1-15wt.% conductive carbon black (C) having a dibutyl phthalate absorption of 300ml/100g or above. Even when component B is added to component A, the resulting mixture does not show sufficient electric conductivity and electromagnetic wave shielding effect. When component B is added in excess, the obtained mixture cannot be molded. By further adding component C to the mixture, a conductive resin composition having stabilized high electric conductivity and excellent electromagnetic wave shielding effect can be obtained.
Inventors:
Satoshi Tanaka
Application Number:
JP8813196A
Publication Date:
March 30, 2005
Filing Date:
April 10, 1996
Export Citation:
Assignee:
Teijin Chemicals Ltd.
International Classes:
C08K3/04; C08K3/00; C08K9/00; C08K9/02; C08L51/04; C08L69/00; (IPC1-7): C08L69/00; C08K3/04; C08K9/02
Domestic Patent References:
| JP6240128A |
Attorney, Agent or Firm:
Masataka Oshima